openpower/package/hostboot/p9Patches/hostboot-0001-Remove-support-for-P9N-Nimbus-DD1.0.patch

From 3fc13542a298284b7a45ee6fbf2152aec659c733 Mon Sep 17 00:00:00 2001
From: Dean Sanner <dsanner@us.ibm.com>
Date: Mon, 18 Sep 2017 13:49:09 -0500
Subject: [PATCH] Remove support for P9N (Nimbus) DD1.0

  - Will error out during IPL
  - Gracefully handle removal of DD1.0 inits,
    tied to hw091517b.910 HCODE image

Change-Id: I7b4c53b38863a8251a8c02d7df83a3ff713f52d7
---
 src/include/usr/isteps/istep_reasoncodes.H  |  2 ++
 src/usr/isteps/istep06/host_set_ipl_parms.C | 44 ++++++++++++++++++++++++++++-
 2 files changed, 45 insertions(+), 1 deletion(-)

diff --git a/src/include/usr/isteps/istep_reasoncodes.H b/src/include/usr/isteps/istep_reasoncodes.H
index bdf4c93..d76eceb 100644
--- a/src/include/usr/isteps/istep_reasoncodes.H
+++ b/src/include/usr/isteps/istep_reasoncodes.H
@@ -62,6 +62,7 @@ namespace ISTEP
         MOD_SBE_PERFORM_UPDATE_CHECK                      = 0x1A,
         MOD_MSS_ATTR_UPDATE = 0x1B, /* @TODO-RTC:149250-Remove */
         MOD_SBE_GET_FFDC_HANDLER                          = 0x1C,
+        MOD_SET_IPL_PARMS                                 = 0x1D,
     };
 
     /**
@@ -122,6 +123,7 @@ namespace ISTEP
         RC_SBE_UPDATE_IN_MPIPL                   = ISTEP_COMP_ID | 0x32,
         RC_NO_FFDC_RETURNED                      = ISTEP_COMP_ID | 0x33,
         RC_RETURNED_FFDC                         = ISTEP_COMP_ID | 0x34,
+        RC_P9N_DD1_NOT_SUPPORTED                 = ISTEP_COMP_ID | 0x35,
     };
 
 };
diff --git a/src/usr/isteps/istep06/host_set_ipl_parms.C b/src/usr/isteps/istep06/host_set_ipl_parms.C
index 8fe9f12..c42f909 100644
--- a/src/usr/isteps/istep06/host_set_ipl_parms.C
+++ b/src/usr/isteps/istep06/host_set_ipl_parms.C
@@ -31,7 +31,9 @@
 #include <initservice/isteps_trace.H>
 #include <util/utilsemipersist.H>
 #include <hwas/common/deconfigGard.H>
-
+#include <arch/pvrformat.H>
+#include <sys/mmio.h>
+#include <console/consoleif.H>
 
 namespace ISTEP_06
 {
@@ -77,6 +79,46 @@ void* host_set_ipl_parms( void *io_pArgs )
     Util::writeSemiPersistData(l_semiData);
 
 
+    // Add a check to indicate that Nimbus DD1.0 is NOT supported
+    // and prevent a boot
+    PVR_t l_pvr( mmio_pvr_read() & 0xFFFFFFFF );
+    if( l_pvr.isNimbusDD1() )
+    {
+#ifdef CONFIG_CONSOLE
+        CONSOLE::displayf(ISTEP_COMP_NAME,
+                          "P9N (Nimbus) DD1.0 is not supported in this driver");
+        CONSOLE::displayf(ISTEP_COMP_NAME,
+                          "Please update the system's processor modules");
+#endif
+
+
+        TRACFCOMP( ISTEPS_TRACE::g_trac_isteps_trace,
+                   "DD1.0 is NOT SUPPORTED anymore. "
+                   "Please upgrade proc modules");
+        /*@
+         * @errortype
+         * @moduleid     ISTEP::MOD_SET_IPL_PARMS
+         * @reasoncode   ISTEP::RC_P9N_DD1_NOT_SUPPORTED
+         * @userdata1    PVR of master proc
+         * @devdesc      P9N (Nimbus) DD1.x is not supported
+         *               in this firmware driver.  Please update
+         *               your module or use a different driver
+         * @custdesc     A problem occurred during the IPL
+         *               of the system.
+         */
+        uint64_t l_dummy = 0x0;
+        l_err = new ERRORLOG::ErrlEntry(
+                                        ERRORLOG::ERRL_SEV_UNRECOVERABLE,
+                                        ISTEP::MOD_SET_IPL_PARMS,
+                                        ISTEP::RC_P9N_DD1_NOT_SUPPORTED,
+                                        l_pvr.word,
+                                        l_dummy);
+        // Create IStep error log and cross ref error that occurred
+        l_stepError.addErrorDetails( l_err );
+        errlCommit( l_err, ISTEP_COMP_ID );
+    }
+
+
     TRACFCOMP( ISTEPS_TRACE::g_trac_isteps_trace, "host_set_ipl_parms exit" );
 
     return l_stepError.getErrorHandle();
-- 
1.8.2.2